typedef struct list {
    item_type item;
    struct list *next;
} list, *list_p;

void print_list(list_p l)
{
    if (l != NULL) {
    printf("%d-", l->item);
    print_list(l->next);
    }
    return;
}

/bin/bash: line 1:  8837 Segmentation fault: 11  ./a.out